Shell script & PHP script to backup a wordpress instance to a Box account

backup.sh

#! /bin/bash
echo Backup Started `date` >> ~/backups/backup.log
mkdir ~/backups/data/`date +%Y%m%d`
tar -czf ~/backups/data/`date +%Y%m%d`/`date +%Y%m%d`_wp3.tar.gz ~/wp3
mysqldump -uwp3 -ppassword wp3 > ./wp3.sql
tar -czf ~/backups/data/`date +%Y%m%d`/`date +%Y%m%d`_sql.tar.gz ./wp3.sql
rm ./wp3.sql
find ~/backups/data -mtime +20 -type f -exec rm -rf {} \;
echo Backup Completed `date` >> ~/backups/backup.log

crontab

00 04 * * * ~/backups/backup.sh
00 05 01,15 * * php ~/backups/upload.php

upload.php

<?php
require_once('lib/Box_Rest_Client.php');
class Backup {
  const apikey = 'xxx';
  const targetDir = 211925140;
  const mysql = 'sql.tar.gz';
  const filesystem = 'wp3.tar.gz';
  private $token;
  private $box;
  private $dir;

  public function init() {
    $this->token = 'xxx';
    $this->box = new Box_Rest_Client(self::apikey);
    $this->box->auth_token = $this->token;
    $this->setDir();
    $this->backupStart();
  }
  private function backupStart() {
    $one = $this->upload(self::mysql);
    $this->log($one);
    $two = $this->upload(self::filesystem);
    $this->log($two);
  }
  private function upload($file_name) {
    $file_name = $this->dir . '_' . $file_name;
    $file_path = $this->fullPath($file_name);
    $file = new Box_Client_File($file_path, $file_name);
    $file->attr('folder_id', self::targetDir);
    return $this->box->upload($file);
  }
  private function setDir() {
    $contents = scandir(dirname(__FILE__) . '/data');
    usort($contents, array($this, 'sortDir'));
    $contents = array_slice($contents, 2); 
    $this->dir = $contents[0];
  }
  private function sortDir($a, $b) {
    $a = strtotime($a);
    $b = strtotime($b);
    if ($a == $b) {
      return 0;
    }
    return ($a > $b) ? -1 : 1;
  }
  private function fullPath($file='') {
    return dirname(__FILE__) . '/data/' . $this->dir . '/' . $file;
  }
  private function log($response) {
    $log = "upload.log";
    $fh = fopen($log, 'a');
    $string = date("c") . ": " . $response . "\n";
    fwrite($fh, $string);
    fclose($fh);
  }
}
$backup = new Backup;
$backup->init();cron